import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import User from '../components/user/Users.vue'
import Role from '../components/rights/Role.vue'
import Right from '../components/rights/Right.vue'
import Cate from '../components/goods/Cate.vue'
import List from '../components/goods/List.vue'
import Good from '../components/goods/Good.vue'
import Param from '../components/goods/Param.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'

Vue.use(VueRouter)

const routes = [
  { path: '/', redirect: '/login' },
  { path: '/login', component: Login },
  {
    path: '/home',
    component: Home,
    redirect: '/welcome',
    children: [
      { path: '/welcome', component: Welcome },
      { path: '/users', component: User },
      { path: '/roles', component: Role },
      { path: '/rights', component: Right },
      { path: '/categories', component: Cate },
      { path: '/goods', component: List },
      { path: '/params', component: Param },
      { path: '/goods/add', component: Good },
      { path: '/orders', component: Order },
      { path: '/reports', component: Report }
    ]
  }
]
// 解决ElementUI导航栏中的vue-router在3.0版本以上重复点菜单报错问题
const originalPush = VueRouter.prototype.push
VueRouter.prototype.push = function push(location) {
  return originalPush.call(this, location).catch(err => err)
}

const router = new VueRouter({
  routes
})
// 挂在路由导航守卫
router.beforeEach((to, from, next) => {
  // to代表将要访问的路径
  // from代表从哪个路径跳转而来
  // next是一个函数，next()表示直接放行，next('/login')强制跳转。
  if (to.path === '/login') return next()
  // 获取token
  // const tokenStr = window.sessionStorage.getItem('token')
  // if (!tokenStr) return next('/login')
  next()
})

export default router
